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1. 发明授权

US07110488B2 X-ray generator and slip ring for a CT system 失效
标题翻译： CT系统的X射线发生器和滑环
公开(公告)号：US07110488B2
公开(公告)日：2006-09-19
申请号：US11160994
申请日：2005-07-19
申请人： Jason S. Katcha , Jonathan R. Schmidt
发明人： Jason S. Katcha , Jonathan R. Schmidt
IPC分类号： H05G1/10
CPC分类号： A61B6/56 , A61B6/032 , H05G1/10
摘要： The present invention is directed to an apparatus for supplying power to a rotatable x-ray tube for generation of an x-ray beam for acquisition of CT data. The apparatus includes a slip ring to transfer power from a stationary inverter to a rotatable HV tank. The HV tank conditions the transferred power and creates a voltage potential across the x-ray tube for x-ray generation. The inverter has a single or pair of series resonant circuits connected either directly to the slip ring or indirectly through a transformer to limit frequency content and reduce common-mode component of the voltage and current waveforms carried by the slip ring as well as reduce power losses.
摘要翻译：本发明涉及一种用于向旋转X射线管供电以产生用于获取CT数据的X射线束的装置。该装置包括一个滑环，用于将动力从固定逆变器传递到可旋转的HV箱。 HV电池对传输的功率进行调节，并在X射线管上产生一个电压电位，用于X射线产生。逆变器具有单个或一对串联谐振电路，其直接连接到滑环或通过变压器间接连接，以限制频率含量，并降低滑环承载的电压和电流波形的共模分量，并降低功率损耗。

2. 发明授权

US06975698B2 X-ray generator and slip ring for a CT system 有权
标题翻译： CT系统的X射线发生器和滑环
公开(公告)号：US06975698B2
公开(公告)日：2005-12-13
申请号：US10604192
申请日：2003-06-30
申请人： Jason S. Katcha , Jonathan R. Schmidt
发明人： Jason S. Katcha , Jonathan R. Schmidt
IPC分类号： A61B6/03 , A61B6/00 , H05G1/10
CPC分类号： A61B6/56 , A61B6/032 , H05G1/10
摘要： The present invention is directed to an apparatus for supplying power to a rotatable x-ray tube for generation of an x-ray beam for acquisition of CT data. The apparatus includes a slip ring to transfer power from a stationary inverter to a rotatable HV tank. The HV tank conditions the transferred power and creates a voltage potential across the x-ray tube for x-ray generation. The inverter has a single or pair of series resonant circuits connected either directly to the slip ring or indirectly through a transformer to limit frequency content and reduce common-mode component of the voltage and current waveforms carried by the slip ring as well as reduce power losses.
摘要翻译：本发明涉及一种用于向旋转X射线管供电以产生用于获取CT数据的X射线束的装置。该装置包括一个滑环，用于将动力从固定逆变器传递到可旋转的HV箱。 HV电池对传输的功率进行调节，并在X射线管上产生一个电压电位，用于X射线产生。逆变器具有单个或一对串联谐振电路，其直接连接到滑环或通过变压器间接连接，以限制频率含量，并降低滑环承载的电压和电流波形的共模分量，并降低功率损耗。

3. 发明授权

US07107189B1 Method and apparatus for associating a field replaceable unit with a medical diagnostic system and recording operational data 有权
标题翻译：用于将现场可更换单元与医疗诊断系统相关联并记录操作数据的方法和装置
公开(公告)号：US07107189B1
公开(公告)日：2006-09-12
申请号：US09450264
申请日：1999-11-29
申请人： Brian D. Lounsberry , Jonathan R. Schmidt , Stephen W. Gravelle , Michael S. Idelchik , James S. Shepard
发明人： Brian D. Lounsberry , Jonathan R. Schmidt , Stephen W. Gravelle , Michael S. Idelchik , James S. Shepard
IPC分类号： H05G1/54
CPC分类号： H04Q9/04 , A61B5/0022 , A61B5/055 , A61B6/00 , A61B6/548 , A61B6/56 , A61B6/581 , A61B8/00 , A61B8/56 , A61B8/565 , A61B2560/0271 , G06F19/00 , G06F19/321 , G16H40/40
摘要： A method for associating a field replaceable unit with a medical diagnostic system includes querying for information on a field replaceable unit to be associated with a medical diagnostic system by sending a query to an electronic device associated with the field replaceable unit, receiving information on the field replaceable unit, and configuring the medical diagnostic system in accordance with the information. A corresponding apparatus includes a storage medium physically coupled to the field replaceable unit and a programmed digital processing circuit coupled to the storage medium. The storage medium contains identification information for a field replaceable unit. The processing circuit responds to requests for identification information from the medical diagnostic system.
摘要翻译：将现场可更换单元与医疗诊断系统相关联的方法包括通过向与现场可更换单元相关联的电子设备发送查询来查询与医疗诊断系统相关联的现场可更换单元的信息，接收现场可用信息可更换单元，并根据信息配置医疗诊断系统。相应的装置包括物理耦合到现场可更换单元的存储介质和耦合到存储介质的编程数字处理电路。存储介质包含用于现场可更换单元的识别信息。处理电路响应来自医疗诊断系统的识别信息请求。

4. 发明授权

US5400385A High voltage power supply for an X-ray tube 失效
标题翻译：用于X射线管的高压电源
公开(公告)号：US5400385A
公开(公告)日：1995-03-21
申请号：US116143
申请日：1993-09-02
申请人： James A. Blake , Jonathan R. Schmidt , Michael A. Wu
发明人： James A. Blake , Jonathan R. Schmidt , Michael A. Wu
IPC分类号： H05G1/20 , H05G1/32 , H05G1/34
CPC分类号： H05G1/20 , H05G1/32
摘要： A supply for a high bias voltage in an X-ray imaging system has an inverter and a voltage multiplier that produce an alternating output voltage in response to control signals. A voltage sensor produces a signal indicating a magnitude of the output voltage. A circuit determines a difference between the sensor signal and a reference signal that specifies a desired magnitude for the output voltage and that difference is integrated to produce an error signal. The error signal preferably is summed with a precondition signal that is an approximation of a nominal value for the signal sum and the summation producing a resultant signal. Another summation device arithmetically combines the resultant signal and the sensor signal with a signal corresponding to a one-hundred percent duty cycle of the inverter operation in order to produce a duty cycle command. An inverter driver generates the inverter control signals that have frequencies defined by the resultant signal and have duty cycles defined by the duty cycle command. A unique state machine is described which generates those control signals.
摘要翻译：用于X射线成像系统中的高偏置电压的电源具有反相器和电压倍增器，其响应于控制信号而产生交流输出电压。电压传感器产生指示输出电压大小的信号。电路确定传感器信号和指定输出电压的期望幅度的参考信号之间的差异，并且该差被积分以产生误差信号。误差信号优选地与作为信号和的标称值的近似值的预处理信号和产生结果信号的求和相加。另一个求和装置将得到的信号和传感器信号与对应于逆变器操作的百分之一百的占空比的信号进行算术组合，以产生占空比指令。逆变器驱动器产生具有由结果信号定义的频率并具有由占空比指令定义的占空比的逆变器控制信号。描述了生成这些控制信号的独特的状态机。

5. 发明授权

US06990172B2 Method and apparatus to determine tube current modulation profile for radiographic imaging 有权
标题翻译：确定射线照相成像的管电流调制曲线的方法和装置
公开(公告)号：US06990172B2
公开(公告)日：2006-01-24
申请号：US10782485
申请日：2004-02-19
申请人： Thomas L. Toth , Steven J. Woloschek , Jonathan R. Schmidt
发明人： Thomas L. Toth , Steven J. Woloschek , Jonathan R. Schmidt
IPC分类号： H05G1/34
CPC分类号： A61B6/032 , A61B6/4085 , A61B6/488 , A61B6/542 , A61B6/544 , A61B6/583 , G06F19/00
摘要： A method and apparatus is disclosed to acquire scout scan data of a subject and analyzed to determine a peak-to-peak modulation amplitude of a normalized waveform indicative of subject size and shape. The scout scan data provides a representation of patient size and shape that is associated with an ideal tube current modulation waveform or profile. The ideal tube current modulation profile may then be sampled or approximated at various points to determine a tube current modulation profile for implementation to acquire CT data with reduced dose but without sacrificing image quality.
摘要翻译：公开了一种获取被摄体的侦察扫描数据并进行分析的方法和装置，以确定表示被摄体大小和形状的归一化波形的峰 - 峰调制幅度。侦察扫描数据提供与理想的管电流调制波形或轮廓相关联的患者大小和形状的表示。然后可以在各个点对理想的管电流调制曲线进行采样或近似，以确定管电流调制曲线，用于实现以减小剂量而不牺牲图像质量来获取CT数据。

6. 发明授权

US06836529B2 Method and apparatus of CT imaging with voltage modulation 有权
标题翻译：电压调制CT成像方法及装置
公开(公告)号：US06836529B2
公开(公告)日：2004-12-28
申请号：US09683781
申请日：2002-02-13
申请人： Jianying Li , Steven J. Woloschek , Thomas L. Toth , Jonathan R. Schmidt
发明人： Jianying Li , Steven J. Woloschek , Thomas L. Toth , Jonathan R. Schmidt
IPC分类号： G01N2300
CPC分类号： A61B6/541 , A61B6/032
摘要： A system and method of diagnostic imaging with reduced x-ray exposure to the scan subject during scanning includes acquiring a set of cardiac signals or other motion (cardiac mechanical motion or respiratory motion) related signals and determining and imaging profile therefrom. Pursuant to the imaging profile, voltage applied to an x-ray source is modulated to provide an energizing voltage during primary data acquisition stages and a reduced voltage during secondary or non-data acquisition stages. Voltage modulation repeats until sufficient data for image reconstruction has been acquired.
摘要翻译：在扫描期间减少对扫描对象的X射线照射的诊断成像的系统和方法包括获取一组心脏信号或其他运动（心脏机械运动或呼吸运动）相关信号，并从中确定和成像轮廓。根据成像轮廓，施加到X射线源的电压被调制以在主数据采集阶段提供通电电压，并且在次级或非数据采集阶段期间提供降低的电压。直到获得用于图像重建的足够数据为止，才重复进行电压调制。

7. 发明授权

US5621781A X-ray tube 失效
标题翻译： X光管
公开(公告)号：US5621781A
公开(公告)日：1997-04-15
申请号：US572587
申请日：1995-12-14
申请人： James A. Blake , Steven D. Hansen , Jonathan R. Schmidt
发明人： James A. Blake , Steven D. Hansen , Jonathan R. Schmidt
IPC分类号： H01J35/06 , H01J35/10 , H01J35/22 , H05G1/34 , H05G1/56 , H01J35/14
CPC分类号： H05G1/56 , H01J35/06 , H05G1/34 , H01J2235/023 , H01J2235/068
摘要： A rotating X-ray tube comprises a cathode assembly including a cathode and a cathode current supply, and an anode assembly having an anode current controlled via the cathode current supply. A filament for emitting electrons is separated from the cathode. A cathode cup supports the filament and provides electron field shaping assistance. The X-ray tube further comprises a distributed capacitance for affecting the cathode cup electron field, and an insulator leakage resistance. The cathode cup is allowed to float on the insulator leakage resistance, whereby voltage associated with the distributed capacitance and the leakage resistance is allowed to remain relatively constant.
摘要翻译：旋转的X射线管包括阴极组件，其包括阴极和阴极电流源，以及具有通过阴极电流源控制的阳极电流的阳极组件。用于发射电子的灯丝与阴极分离。阴极杯支撑灯丝并提供电子场成形辅助。 X射线管还包括用于影响阴极杯电子场的分布电容和绝缘体泄漏电阻。允许阴极杯浮在绝缘体漏电阻上，由此允许与分布电容和泄漏电阻相关联的电压保持相对恒定。

8. 发明授权

US06574518B1 Method and apparatus for communicating operational data for a system unit in a medical diagnostic system 有权
标题翻译：用于在医疗诊断系统中传送系统单元的操作数据的方法和装置
公开(公告)号：US06574518B1
公开(公告)日：2003-06-03
申请号：US09450074
申请日：1999-11-29
申请人： Brian D. Lounsberry , Jonathan R. Schmidt , Stephen W. Gravelle , Michael S. Idelchik , James S. Shepard
发明人： Brian D. Lounsberry , Jonathan R. Schmidt , Stephen W. Gravelle , Michael S. Idelchik , James S. Shepard
IPC分类号： G06F1700
CPC分类号： A61B8/00 , A61B5/055 , A61B6/00 , A61B6/548 , A61B6/56 , A61B6/566 , A61B6/581 , A61B8/56 , A61B8/565 , A61B2560/0271 , G06F19/00 , G06F19/3418 , G16H40/40
摘要： A method for communicating operational data for a system unit in a medical diagnostic system includes communicating identification information from an electronic device coupled to the system unit in the medical diagnostic system to an imaging unit in said medical diagnostic system, operating the medical diagnostic system in accordance with the identification information and generating operational data, and communicating the operational data to the system unit in order to establish a record of operational data for the system unit in the electronic device. The operational data includes information relating to the operation of the system unit in the medical diagnostic system. A corresponding apparatus includes a storage medium, a communication interface, and a programmed digital processing circuit coupled to the storage medium and the communication interface. The storage medium contains identification information for a system unit in a medical diagnostic system and a memory location for a record of operational data for the system unit. The communication interface is configured to allow for the communication between the system unit and the medical diagnostic system of identification information and operational data regarding the system unit. The processing circuit is responsive to requests for identification information and controlling communication of operational data via the communication interface to the medical diagnostic system.
摘要翻译：一种用于在医疗诊断系统中传送系统单元的操作数据的方法包括：将来自与医疗诊断系统中的系统单元耦合的电子设备的识别信息传送到所述医疗诊断系统中的成像单元，根据该诊断系统操作医疗诊断系统利用所述识别信息并生成操作数据，并将所述操作数据传送到所述系统单元，以建立所述电子设备中的所述系统单元的操作数据的记录。操作数据包括与医疗诊断系统中的系统单元的操作有关的信息。相应的装置包括存储介质，通信接口和耦合到存储介质和通信接口的编程数字处理电路。存储介质包含用于医疗诊断系统中的系统单元的识别信息和用于系统单元的操作数据记录的存储位置。通信接口被配置为允许系统单元和医疗诊断系统之间的关于系统单元的识别信息和操作数据之间的通信。处理电路响应于对识别信息的请求，并且通过通信接口控制操作数据的通信到医疗诊断系统。

9. 发明授权

US06215850B1 X-ray beam control for an imaging system 有权
标题翻译：用于成像系统的X射线束控制
公开(公告)号：US06215850B1
公开(公告)日：2001-04-10
申请号：US09218347
申请日：1998-12-22
申请人： James A. Blake , Jonathan R. Schmidt , Alexander M. Blok
发明人： James A. Blake , Jonathan R. Schmidt , Alexander M. Blok
IPC分类号： H05G106
CPC分类号： H05G1/32
摘要： The present invention, in one form, includes methods and apparatus for reducing the x-ray dosage to a patient in a medical imaging system. In accordance with one embodiment of the present invention, a switching unit, or circuit, is coupled to a x-ray tube and a power supply to control the emission of x-ray beams from the x-ray tube. The switching unit is configured to alter a voltage and current signal applied to the x-ray tube control grid so that the magnitude of the x-ray beams is modified, or altered. By utilizing the switching unit the patient x-ray dosage is reduced and the magnitude of the x-ray beams may be configured to match the requirements of the application.
摘要翻译：本发明以一种形式包括用于在医学成像系统中减少对患者的x射线剂量的方法和装置。根据本发明的一个实施例，开关单元或电路耦合到X射线管和电源，以控制来自X射线管的x射线束的发射。开关单元被配置为改变施加到X射线管控制栅格的电压和电流信号，使得X射线束的大小被修改或改变。通过利用切换单元，减少患者x射线剂量，并且可以将x射线束的大小配置成与应用的要求相匹配。

10. 发明授权

US5485494A Modulation of X-ray tube current during CT scanning 失效
标题翻译： CT扫描期间X射线管电流的调制
公开(公告)号：US5485494A
公开(公告)日：1996-01-16
申请号：US285253
申请日：1994-08-03
申请人： Kenneth R. Williams , Herbert K. Koehl , Jonathan R. Schmidt
发明人： Kenneth R. Williams , Herbert K. Koehl , Jonathan R. Schmidt
IPC分类号： H05G1/30 , A61B6/03 , H05G1/26 , H05G1/34 , A61B6/00
CPC分类号： H05G1/34 , A61B6/032 , A61B6/405 , A61B6/4078 , A61B6/488 , A61B6/542 , H05G1/26 , A61B6/548
摘要： An x-ray CT system modulates x-ray tube current as a function of gantry angle to reduce the total patient dose without significantly increasing image noise. A modulation waveform is stored in a table as a function of gantry angle, and during a slice acquisition, values are periodically read from this table and employed to calculate tube current commands. Tube current is monitored and compared with the latest command to ensure the proper x-ray dose is applied.
摘要翻译： X射线CT系统调制x射线管电流作为台架角度的函数，以减少总患者剂量而不显着增加图像噪声。调制波形作为台架角度的函数存储在表中，并且在片采集期间，周期性地从该表读取值并用于计算管电流命令。监测管电流并与最新的命令进行比较，以确保施加适当的x射线剂量。

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